If you are given choice to either load object eagerly or lazily , which one would you use in case of singleton pattern ?
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Q1.
If you are given choice to either load object eagerly or lazily , which one would you use in case of singleton pattern ?
Design
Ans. I would choose Eager as the cost for 1 additional object is too minute for any such consideration.
Eager Loading results in Faster access ( Object available at load time) at the cost of additional space.
Lazy loading results in space saving ( Object available at first use ) at the cost of access speed.
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 design Pattern  Singleton  Lazy vs Eager Loading
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//Double Checked Locking Code
public static Singleton createInstance() {
if(singleton == null){
synchronized(Singleton.class) {
if(singleton == null) {
singleton = new Singleton();
}
}
}
return singleton;
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//Single checked locking code
public static Singleton createInstance() {
synchronized(Singleton.class) {
if(singleton == null) {
singleton = new Singleton();
}
}
return singleton;
}
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